@article{263543,
      note = {Cover title.},
      author = {Sidder, Gary B. and Martínez, Félix,},
      url = {http://library.usi.edu/record/263543},
      title = {Geology, geochemistry, and mineral resources of the upper  Caura River area, Bolivar State, Venezuela [microform] /},
      publisher = {Dept. of the Interior, Geological Survey]},
      recid = {263543},
      pages = {ii, 29 p. :},
      address = {[Denver, CO :},
      year = {1990},
}